CVE-2011-1991

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

12.07% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 95.7% of scored records. A rank, not a probability.

NVD base score

The NVD has published no score for this record

NVD CVSS vector

No NVD score to derive

NVD analysis status

Modified. NVD last modified this record on 2026-06-16.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2011-09-15 10:00Z15 YR AGO

Last updated

2024-08-06 22:46Z2 YR AGO

Reserved

2011-05-09

Assigning CNA

microsoft

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

No CWE assigned

Data version

5.1

Document digest

042e250b9fd198a7ac6fb44b429ca5be5b027a7d379235f96723d1883ccf4d6e

• docs.microsoft.comMS11-071https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-071vendor-advisoryx_refsource_MS
• oval.cisecurity.orgoval:org.mitre.oval:def:12871https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12871vdb-entrysignaturex_refsource_OVAL
• www.us-cert.govTA11-256Ahttp://www.us-cert.gov/cas/techalerts/TA11-256A.htmlthird-party-advisoryx_refsource_CERT